I don't think they show how to do ELB across Regions, or diversity against single-ELB problems (although I haven't seen ELB fail yet). You'd probably have to build this yourself.
Jun 30, 12:15 AM PDT [..] Elastic Load Balancers were also impacted by this event. ELBs are still experiencing delays in provisioning load balancers and in making updates to DNS records.
Jun 30, 12:37 AM PDT ELB is currently experiencing delayed provisioning and propagation of changes made in API requests. As a result, when you make a call to the ELB API to register instances, the registration request may take some time to process. As a result, when you use the DescribeInstanceHealth call for your ELB, the state may be inaccurately reflected at that time. To ensure your load balancer is routing traffic properly, it is best to get the IP addresses of the ELB's DNS name (via dig, etc.) then try your request on each IP address. We are working as fast as possible to get provisioning and the API latencies back to normal range.
I don't think they show how to do ELB across Regions, or diversity against single-ELB problems (although I haven't seen ELB fail yet). You'd probably have to build this yourself.